What is the Destructive Power of Gian's Singing?

Okay, no problem! Talking about Gian's singing voice, it's a classic, beyond-classic running gag in Doraemon. Its destructive power can't simply be summed up as "bad singing"; it's practically a supernatural-level disaster.

We can understand its "power" from the following aspects:

Hardcore Destruction: The Physical Level

Gian's singing transcends mere sound, becoming a literal sonic weapon. Its effects are direct and exaggerated:

Shattering Glass: This is the most common manifestation. Whether it's Nobita's window, Suneo's glassware, or a street-side optician's shop, whenever Gian opens his mouth, glass objects within a wide radius shatter instantly.
Damaging Objects: Taking the destruction up a notch, TVs turn to static, walls crack, street lamps explode, and even sturdy objects get shaken violently.
Repelling Wildlife: Nearby creatures like rats, cockroaches, and birds flee in panic as if facing the apocalypse. This shows his singing has an indiscriminate "attack" effect on all living things.
Weaponized Application: In some movies, Gian's singing is even amplified by Doraemon's gadgets (like the "Echo Mountain") to combat powerful enemies, proving super effective by directly stunning or overwhelming the villains.

(Imagine the devastation of that scene!)

Ruthless Impact: The Mental Level

If physical destruction can be avoided, the mental torture is inescapable. This is the most painful part for Nobita and the others:

Physical Discomfort: Listeners immediately experience dizziness, nausea, the urge to vomit, stomach aches – basically every conceivable symptom of physical distress.
Mental Disorientation: In severe cases, listeners lose consciousness and collapse, as if struck by a psychic shockwave.
Psychological Trauma: This is the core issue. For Nobita, Suneo, and Shizuka, Gian announcing "I'm holding a concert!" is itself a source of immense psychological pressure. They'll try every trick (like feigning illness or running away) to avoid this "calamity," and this sheer "will to survive" is a primary source of the comedy.

Why Such Destructive Power?

Ultimately, this is mainly for comedic effect.

Massive Disconnect: Gian himself possesses boundless confidence in and love for his "heavenly" voice; he genuinely believes he's a future superstar. Yet, in reality, his singing is a devastating disaster. This vast gulf between his self-perception and objective reality is the core joke of this setup.
Plot Device: Gian's concerts often kickstart an episode's story. Because everyone wants to avoid them, they turn to Doraemon for help. Doraemon then produces various gadgets to solve the problem (like soundproofing devices or gadgets to make the singing sound good), and the story unfolds from there.

In conclusion, within the world of Doraemon, Gian's singing is far more than just "bad singing." It's a quintessential comedic element combining physical assault, mental domination, and plot catalyst. It perfectly shapes Gian's character – rough, supremely confident, yet with a complex inner yearning for approval. 😉